@book{50403,
	author = {Cuadra Echaide, Pilar de. and Berrondo, Pedro.},
	title = {Perfil y pulso de Guipúzcoa },
	publisher = {Auñamendi, },
	year = {[1973]},
	address = {San Sebastián : },
	edition = {Ed. bilingüe.}
}